Re: First Alert FA-210 panel keeps beeping

[JoeRaisin <joeraisin2001@xxxxxxxxx>]

dchou4u@xxxxxxxxxxx wrote:
> On Aug 25, 5:11 pm, ransley <Mark_Rans...@xxxxxxxxx> wrote:
>> On Aug 25, 4:53 pm, "dcho...@xxxxxxxxxxx" <dcho...@xxxxxxxxxxx> wrote:
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>>> On Aug 25, 2:50 pm, "dcho...@xxxxxxxxxxx" <dcho...@xxxxxxxxxxx> wrote:
>>>> On Aug 25, 1:35 pm, ransley <Mark_Rans...@xxxxxxxxx> wrote:
>>>>> On Aug 25, 2:39 pm, Dennis <dcho...@xxxxxxxxx> wrote:
>>>>>> Hi, I have a 10 year old First Alert FA-210 panel which shows LO BAT
>>>>>> off and on, but there is no zone number info. Sometimes the panel will
>>>>>> keep beeping until I press any key on the keypad to turn the beeping
>>>>>> off. According to the manual, it says it is due to low system power
>>>>>> condition. But I checked the AC power and it seems to be feeding the
>>>>>> correct voltage to the control box. Any clue?
>>>>>> Thanks
>>>>>> Dennis
>>>>> Good systems have backup batteries so a thief cant just disable the
>>>>> power, or come by during a power outage, mine has a 12v lead acid
>>>>> battery I can get at Ace, open the panel and see, and google for an
>>>>> instruction manual.
>>>> So does the board in the box run off the battery even when A/C power
>>>> is functional? I always thought the board is running off the A/C power
>>>> and the battery is used only when A/C power is disabled.
>>>> Thanks again for all your help
>>> By the way, I used a voltmeter to measure the voltage on the battery
>>> and it seems OK. I measure the battery voltage with A/C power adapter
>>> connected to the wall outlet.
>>> Just wondering how the battery may be bad if the voltmeter indicates
>>> an acceptable battery voltage at its leads.- Hide quoted text -
>>> - Show quoted text -
>> Ok , what ok, 12.2 v is 25% charged, 12.8 is 100% for most set ups and
>> thats not connected.
>
> The battery is an Ultratech UT1270 12V 7Ah. Yesterday I disconnected
> the A/C power supply and let the battery drain. Today the battery is
> totally drained. I plan to get a replacement battery, maybe a 12V 4Ah
> one.

4 ah is adequate, but I wouldn't use one on mine.  12 ah would be best
but they probably won't fit in the can.  7 ah back-up battery is the one
most commonly used by professionals who give a crap about their customers.

That's my two cents - make up your own mind.